<p>
Delete NVRAM. Then run mame, e.g. mame55 klax, wait until you see the split 2 player Klax screen. Hit ESC. A proper default klax.nv is created. Then...
<p>
mame55 klax -playback mlklax
<p>
should work correctly. I suspect that the default high scores are loaded in by this point, which probably effects the random number generator. Before that I think the high score memory locations are nulls? I'll have to check...
<p>
Please confirm inp if possible, this will verify my theory

<p>
Mark
--
zero1@look.ca